diff --git a/providers/openai/base.go b/providers/openai/base.go
index 4565c4ab..9e20896b 100644
--- a/providers/openai/base.go
+++ b/providers/openai/base.go
@@ -111,13 +111,14 @@ func (p *OpenAIProvider) GetFullRequestURL(requestURL string, modelName string)
 		}
 
 	} else if p.Channel.Type == config.ChannelTypeCustom && p.Channel.Other != "" {
-		if p.Channel.Other == "disable" {
-			p.Channel.Other = ""
+		replaceValue := p.Channel.Other
+		if replaceValue == "disable" {
+			replaceValue = ""
 		} else {
-			p.Channel.Other = "/" + p.Channel.Other
+			replaceValue = "/" + replaceValue
 		}
 
-		requestURL = strings.Replace(requestURL, "/v1", p.Channel.Other, 1)
+		requestURL = strings.Replace(requestURL, "/v1", replaceValue, 1)
 	}
 
 	if strings.HasPrefix(baseURL, "https://gateway.ai.cloudflare.com") {